| Heartland Music AS | Arts & recreation | 2021 |
| Heartland Music Group AS | Information & communication | 2026 |
| Heartlooper AS | Education | 2025 |
| Heartmakermusic AS | Arts & recreation | 2015 |
| Hearts & Science AS | Professional & scientific | 2018 |
| Hearttec Software AS | Information & communication | 2026 |
| Heartwood AS | | 2026 |
| Heat Con Varmeteknikk AS | Wholesale & retail | 1932 |
| Heat Partners AS | Wholesale & retail | 2019 |
| Heatco Auto-Tronic AS | Other services | 2016 |
| Heating. AS | Construction | 2021 |
| Heatstroke Invest AS | Financial services | 2020 |
| Heaven Scent AS | Wholesale & retail | 2007 |
| Heavify AS | Information & communication | 2024 |
| Heavy Water International AS | Wholesale & retail | 2003 |
| Heavydrive AS | Wholesale & retail | 2025 |
| Heavyshark AS | | 2021 |
| Heba Holding AS | | 2016 |
| Hebbis AS | | 2025 |
| Hebco AS | Information & communication | 1989 |
| Heber Hodejeger AS | Administrative & support | 2021 |
| Hebja AS | | 2024 |
| Hebo AS | | 2021 |
| Heca Capital AS | | 2023 |
| Hecate Holding AS | Professional & scientific | 2021 |
| Hecem AS | Professional & scientific | 2017 |
| Heco Laboratorieutstyr AS | Wholesale & retail | 1985 |
| Hecon AS | Financial services | 2002 |
| Hecor AS | Real estate | 2005 |
| Hecotron AS | Wholesale & retail | 1993 |
| Hecotron Industriell Elektronikk AS | Wholesale & retail | 1983 |
| Hecox S H Trade AS | Wholesale & retail | 1991 |
| Hecto Eiendom AS | Real estate | 1997 |
| Hector Holding AS | Wholesale & retail | 2005 |
| Hed AS | | 2022 |
| Hedaks Holding AS | | 2022 |
| Hedama AS | Real estate | 2007 |
| Hedberg Holding AS | | 2019 |
| Hedco Holding AS | | 2022 |
| Heddalsvatnet Ans | Real estate | 2001 |
| Heddas Holding AS | Administrative & support | 2026 |
| Heddi AS | Administrative & support | 2019 |
| Heddy Holding AS | | 2023 |
| Heddybo AS | | 2024 |
| Hedelcord AS | | 2019 |
| Hedelkat AS | | 2025 |
| Hedge Invest AS | | 2016 |
| Hedgehogs AS | Information & communication | 2025 |
| Hedin Holding AS | | 2023 |
| Hedmanimport AS | Wholesale & retail | 2024 |
| Hedmarken Eiendom AS | Real estate | 2018 |
| Hedmarksgata Bolig AS | | 2025 |
| Hedmarksgata Holding AS | Real estate | 2019 |
| Hedmarksgata Næring 1 AS | | 2025 |
| Hedmarksgata Næring 2 AS | | 2025 |
| Hedmarksvegen AS | Construction | 2017 |
| Hedmitho AS | | 2023 |
| Hedné AS | Arts & recreation | 2026 |
| Hedone Holding AS | | 2025 |
| Hedson AS | Health & social care | 2021 |
| Hedvig AS | | 2025 |
| Hedy AS | | 2019 |
| Heed AS | | 2020 |
| Heedal AS | | 2019 |
| Heeeimberg Holding AS | | 2024 |
| Heen Haeg Holding AS | | 2024 |
| Heen Holding AS | | 2023 |
| Heepo Invest AS | Financial services | 2005 |
| Heerveien 9 AS | Real estate | 2010 |
| Hees Group Holding AS | Information & communication | 2021 |
| Hef-Invest AS | | 2023 |
| Hefa Forsalgning Ans | Wholesale & retail | 1998 |
| Hefaistos Holding AS | | 2024 |
| Heff Invest AS | Financial services | 2017 |
| Heffco AS | Real estate | 1989 |
| Heffco Bogstadveien 39 AS | Real estate | 2025 |
| Heffco Eiendom AS | Real estate | 2007 |
| Hefidi AS | | 2024 |
| Hefin AS | Real estate | 1994 |
| Hefre Holding AS | | 2022 |
| Hefring AS | Real estate | 1996 |
| Hefring Explore AS | Professional & scientific | 2026 |
| Heft AS | Administrative & support | 2025 |
| Heft Holding AS | | 2026 |
| Heftige AS | | 2025 |
| Hefty Hår & Hårfjerning Nuf | Other services | 2010 |
| Heftye Opplevelser AS | Arts & recreation | 2016 |
| Heftye Vin AS | Wholesale & retail | 2021 |
| Heg Berg AS | | 2021 |
| Hegami Holding AS | | 2023 |
| Hegbom Ferieboliger AS | Real estate | 2021 |
| Hegdal 1 AS | Real estate | 2019 |
| Hegdalringen 15 AS | Real estate | 2011 |
| Hegdalringen 8 AS | Real estate | 2023 |
| Hegdalsringen 17 AS | Real estate | 2020 |
| Hegdalveien 59 AS | Real estate | 2015 |
| Hegdalveien 59/67 Larvik AS | Real estate | 2008 |
| Hegde 36 AS | Real estate | 2006 |
| Hegde Holding AS | Health & social care | 2022 |
| Hegdedrift AS | Hospitality | 2022 |